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Set of icons representing programming languages, designing & development tools
Your agent writes bad React. This catches it
React hook to handle chat textarea submit behaviors (Enter vs Mod+Enter) with IME-safe handling.
Community-contributed instructions, agents, skills, and configurations to help you make the most of GitHub Copilot.
💫 Toolkit to help you get started with Spec-Driven Development
UDEV Gothic は、ユニバーサルデザインフォントのBIZ UDゴシックと、 開発者向けフォントの JetBrains Mono を合成した、プログラミング向けフォントです。
The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents
From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.
🦉 Custom jest matchers to test the state of the DOM
A curated list of awesome frontend development resources.
Scan and fix React performance issues
Automatically generates beautiful and easy-to-read ER diagrams from your database.
Testing utilities that encourage good practices for apps built with GraphQL.
A beautiful yet powerful syntax highlighter
A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.
React patterns & techniques to use in development for React Developer ⚛ .
ESLint rules to disable mutation and promote fp in JavaScript and TypeScript.
ESLint rules for functional programming
ESLint plugin to force responsive media elements to set the width/height attributes
🌳 Tiny & elegant JavaScript HTTP client based on the Fetch API
🐼 Universal, Type-Safe, CSS-in-JS Framework for Design Systems ⚡️
Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input
Google's Engineering Practices documentation
✂️ Find unused files, dependencies and exports in your JavaScript and TypeScript projects. Knip it before you ship it!